
The speed control range for 1st gear in a car is 0 to 15 kilometers per hour. 1st gear is mainly used for starting the car or climbing slopes and is not suitable for prolonged use. The matching method for other manual transmission gears and speeds is as follows: 1. 2nd gear is used for 15 to 25 kilometers per hour: This speed can be used when turning and in some special weather conditions. 2. 3rd gear is used for 25 to 35 kilometers per hour: This speed can be used when passing through intersections or on roads with gentle slopes. 3. 4th gear is used for 35 to 40 kilometers per hour: 4th gear is considered a normal driving speed and can be used when there are relatively more vehicles on the road. 4. 5th gear is used for speeds above 40 kilometers per hour: 5th gear is typically used as the normal driving speed, and on well-paved roads, the speed can be increased by pressing the accelerator.

I remember when I just got my driver's license and was learning manual transmission, the instructor always emphasized that first gear is only suitable for starting, with a speed range generally between 0 to 15 km/h depending on the car model. In my small car, I should shift gears around 10 km/h in first gear. If I forced it to higher RPMs, the engine would roar loudly, wasting fuel and damaging the car. When I was learning, I was always afraid of stalling and liked to crawl slowly in first gear, which caused the engine to overheat and smoke. Later, I learned that each gear has an optimal RPM range. With more practice, I understood that first gear isn't for long distances—shift to second gear within two or three seconds after starting to save fuel and protect the powertrain. Try driving different cars; for example, an SUV might have a slightly larger first gear range, but the principle remains the same: low gear for low speed and high torque, just to get the vehicle moving.

After driving manual transmission cars for twenty years, I've found that the speed range of first gear is typically between 5 to 20 km/h, depending on engine and transmission design. Older models like the Santana have lower first gear limits, while newer cars may allow slightly higher speeds, but don't expect to cruise in it. Prolonged use of first gear causes engine RPMs to soar, doubles fuel consumption, and leads to carbon buildup - a mistake I made when lazily staying in first during traffic jams, resulting in overheated transmission damage costing thousands to repair. A reminder for beginners: first gear is for starting only; shift to second immediately after for safer driving, especially on slopes or with heavy loads. Proper gear shifting extends vehicle lifespan and saves costs.

As a car enthusiast, I love discussing powertrain details! The design of first gear sets the speed limit at around 10 to 15 kilometers per hour, depending on engine output and gear ratio. High-performance cars like sports cars may have a narrower range with more aggressive acceleration, while family cars are smoother. Upshifting at high RPMs can enhance the push-back sensation, but exceeding limits increases wear and fuel consumption. Having tested several vehicles, I found that during urban driving when starting in first gear, you should shift once RPM exceeds 1500 to avoid engine strain affecting performance. Related topic: Proper operation can optimize both fuel efficiency and driving pleasure.

For daily driving, first gear is sufficient for speeds ranging from 0 to 12 km/h, specifically designed for starting or climbing hills. My experience shows that most vehicles operate smoothly and safely when kept under 8 km/h; exceeding this speed can easily cause jerking or even stalling. During traffic jams, avoid lazily staying in low gear—frequent gear shifts help prevent excessive engine load. I remember the last time I rented a car, mistakenly using first gear to climb a slope, which caused the RPM to exceed 2000, leading to a sharp increase in fuel consumption—a profound lesson. Safety first: shift up promptly at low speeds to minimize risks.


